Lock picking

...and you couldn't think of something to do with your hands in the dark with your lady?
Sorry, couldn't resist.

Waaaay back in my military days I had a guy in my platoon that was a locksmith in his civilian life. I found out when we arrived for work at an on-base warehouse that was locked. I told everyone to "take 5" while I found someone who could let us in. The next thing I knew he said, "Sarge, it's unlocked now."